如何调整带有形状的tkinter覆盖直接窗口的大小？

import tkinter as tk

window = tk.Tk()

window.overrideredirect(True)
window.geometry("500x500")  # 设置窗口初始大小

resize_label = tk.Label(window, text="Resize", bg="gray")
resize_label.pack(side="bottom", fill="x")

def on_mouse_down(event):
    global last_x, last_y
    last_x = event.x
    last_y = event.y

def on_mouse_move(event):
    global last_x, last_y
    delta_x = event.x - last_x
    delta_y = event.y - last_y
    width = window.winfo_width() + delta_x
    height = window.winfo_height() + delta_y
    window.geometry(f"{width}x{height}")

def on_mouse_up(event):
    global last_x, last_y
    last_x = None
    last_y = None

resize_label.bind("<Button-1>", on_mouse_down)
resize_label.bind("<B1-Motion>", on_mouse_move)
resize_label.bind("<ButtonRelease-1>", on_mouse_up)

window.mainloop()